Abstract

Web application has made it faster and convenient to keep and transact important multimedia contents such as image through theInternet. Digital watermarking to the images can secure the information to a great extend to establish the authenticity of the owner of the images to protect copyright against unauthorized claiming of ownership of the image [1][2][5][6]. Digital watermarking on the image is an effective technique for protection of ownership rights in the untrusted open internet environment. However, the success of a digital watermarking technology depends heavily on its robustness to withstand attacks that are aimed at removing or destroying the watermark from its host data (image artefact)[3]. This paper aims at to analyse a number of digital image watermark attacks that the watermarked image may face and attempt has been made to classify them into different categories [7]. A set of experimental results are also provided to show the effect of these attacks onwatermarked images in the internet environment.

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